DC-to-DC converter

A DC-to-DC converter is an electronic circuit or electromechanical device that converts a source of direct current (DC) from one voltage level to another. It is a type of electric power converter.

Buck or Step-Down converter: Device for converting to a lower voltage

Boost or Step-Up Converter: Device for converting to a higher voltage

Boost-Buck Converter: Device capable of converting to a higher or lower voltage